In 2015, SCCA Pro Racing and the FIA combined forces  to create the Formula 4 United States Championship. F4 teams and drivers are aligned with the FIA and series partners: Honda, Honda Performance Development, Hankook Tire America and Onroak Automotive. Stepping into the F4 series  builds upon the progression offered from karting both on and off the track. The series offers developmental  educational programs that cover everything from driving  preparation to marketing and public relations. 

The inaugural season included five event weekends with 15 races. A total of 19 drivers and nine teams competed over the course of the season. The average field for season two doubled in size with 33 cars participating. A total of 48 competitors entered throughout the year and the series participated in a record-breaking 20 races. The growth in the F4 U.S. Championship is exceeding the expectations of its  partners and participants.

SCCA Pro Racing has expanded to support a F4 West Coast series called Formula Pro USA. The Formula Pro USA Western Championships is affiliated with the SCCA Pro Racing F4 program, competing on the same weekend as SCCA club and non-club events on the west coast. The series uses and the same Ligier F4-16 chassis and Honda Civic R engine as the F4 U.S. Championship. FP4 will also use similar rules and regulations as the F4 U.S. Championship. In 2017, SCCA Pro Racing also introduced the new F3 Americas Championship (now FR Americas), offering the next step to competitors' open-wheel development. F3 Americas debuted the summer of 2018.

The F4 series is the fastest way for an  aspiring driver to gain experience to an  international racing platform. With driving  training, unmatched affordability and  strong manufacturer support, competitors  can grow and succeed into the higher levels of motorsports.

Engine Type

Production-based L4


1996cc (121.9 CID)


Dual overhead camshaft, 4 valves/cylinder, i-VTEC Steel alloy


Cast aluminum alloy


Forged steel alloy

Connecting Rods

HPD-developed system with integrated DI driver & internal logging

Engine Management

Digital inductive, coil on plug


Dry sump


Single mechanical water pump


Direct Injected 91 octane unleaded

Fuel Induction

Naturally Aspirated


Approximately 160 hp

To purchase: Contact Ligier Automotive